NMN, NAD+, and Resveratrol: What the science actually says about slowing ageing

Current evidence suggests NMN/NR can raise NAD+ markers in blood and may aid metabolic health in some small studies, but there's no convincing proof they slow ageing or preserve muscle or cognition in older adults; resveratrol has shown effects in lab studies but poor bioavailability and mixed human results limit its anti-ageing claims. The biology is plausible, but real long-term benefits are unproven, and the best proven ways to support healthy ageing are regular exercise, good sleep, a balanced diet, and managing chronic conditions.